PUSCH Beam Configuration Using Multi-Panel SFN and SDM
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Solution Overview
Problem
Existing MIMO systems face challenges in improving transmission reliability and throughput while reducing transmission delay in multi-TRP scenarios, particularly in TDM transmission modes.
Innovation Solution
Configuring different transmission configuration indications (TCIs) for different antenna panels of a terminal, associating them with beam information and the same transmission resources, and employing space division multiplexing (SDM) for simultaneous SFN transmission using non-coherent or coherent joint transmission (NC-JT or C-JT) to enhance flexibility and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of uplink carriers is increased to support more users and enhance network capacity, then the system complexity of uplink carrier management increases significantly
Solution Approach 1:
The patent segments uplink carriers into two distinct types: Type 1 carriers for initial access and Type 2 carriers for data transmission. This segmentation allows the system to manage different carrier types with different configurations and procedures, reducing overall management complexity while supporting multiple carriers simultaneously.
Solution Approach 2:
The patent introduces dynamic switching between Type 1 and Type 2 carriers based on user equipment state and network conditions. The network can dynamically configure and switch carriers, allowing flexible resource allocation without permanently increasing system complexity.
2Productivity
If multiple uplink carriers are configured for user equipment, then uplink transmission capacity is improved, but the processing complexity and power consumption of user equipment increase
Solution Approach 1:
The patent divides uplink carriers into Type 1 (for random access and initial transmission) and Type 2 (for data transmission). User equipment only needs to handle Type 1 carrier for access procedures, reducing processing complexity while still supporting multiple carriers for enhanced capacity.
Solution Approach 2:
The patent enables dynamic carrier switching where user equipment transitions from Type 1 to Type 2 carrier after successful access. This dynamic approach allows multiple carriers to be available without requiring user equipment to continuously process all carriers, reducing power consumption and complexity.
3Productivity
If uplink carrier frequency is increased to provide more resources, then network capacity is enhanced, but the difficulty of carrier frequency coordination and interference management increases
Solution Approach 1:
The patent segments carriers into Type 1 and Type 2 with distinct frequency allocation and management rules. Type 1 carriers use standardized frequencies for random access, while Type 2 carriers can be dynamically allocated. This segmentation simplifies frequency coordination by establishing clear rules for each carrier type.
Solution Approach 2:
The patent changes the operational parameters of different carrier types, with Type 1 carriers using fixed, standardized parameters for access procedures and Type 2 carriers using dynamically configurable parameters. This parameter differentiation reduces coordination complexity by establishing clear distinctions between carrier purposes and management approaches.
Data Source
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AI summary
Embodiments of the present invention relate to a physical uplink shared channel (PUSCH) configuration method and apparatus, a communication device, and a storage medium. The method comprises: for a single frequency network (SFN) transmission of an uplink PUSCH, different antenna panels of a terminal configure different transmission configuration indications (TCIs), wherein the TCIs are associated with beam information; the different TCIs are simultaneously associated with the same transmission resources; the transmission resources comprise a time domain resource and a frequency domain resource; and a plurality of different antenna panels perform SFN transmission of the PUSCH by using space division multiplexing (SDM).